An RE teacher was listing the descendants of Adam during a lesson:-

"And Enoch begat Methuselah:
And Methuselah begat Lamech.
And Lamech begat a son: And he called his name Noah ..."

She then instructed the pupils to take out their exercise books and write a sentence using the word 'begat'. One little lad thought for a while and then wrote:-

"If you can't fight, wear a big 'at"

DC